linux-kernel - Re: [PATCH 0/4] Compile kernel with -fwhole-program --combine

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Date:	Fri, 25 Aug 2006 10:45:22 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] Compile kernel with -fwhole-program --combine

On Fri, 2006-08-25 at 11:11 +0200, Jan Engelhardt wrote:
> That's what I meant. Assume I explicitly built read.o foo.o and bar.o.
> If I then run the regular make, it will rerun gcc for read.c foo.c and 
> bar.c rather than using the already-created .o files for linking. 

Yes. Just as if I run 'make fs/ntfs/inode.o' and then build my kernel,
my build of fs/ntfs/inode.o isn't used -- because I don't have
CONFIG_NTFS set. 

You built something manually that wasn't needed, and then it wasn't
used. Is there a problem here?

-- 
dwmw2

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